Description - ace-ele.com (VER1.7).pdf · ACE301 High-precision Low Voltage Detector VER 1.7 1 Description ACE301 is a series of high precision voltage detector with ultra low current

ACE301

High-precision Low Voltage Detector

VER 1.7 1

Description

ACE301 is a series of high precision voltage detector with ultra low current consumption (500nA typ. at

Vdd=3.0V). It can work at very low voltage, which makes it perfect for system reset.

ACE301 is composed of high precision voltage reference, comparator, output driver and resistor array.

Internally preset detect voltage has a low temperature drift and requires no external trimming.

Two type of output, CMOS and N-channel open-drain are available.

Features

High-precision detection Voltage：±2%

Detection Voltage：0.9V~6.0V (in 0.1V steps)

Precise hysteresis：4% typ.

Operating Voltage range：0.7V~10V

Ultra-low current consumption：500nA typ. (at VDD＝3.0V)

Two Output forms: CMOS and N-channel open-drain

Application

Power monitor for portable equipment such as PDA, DSC, Mobile phone, Notebook, MP3

CPU and Logic Circuit Reset

Battery Checker

Battery Back-up Circuit

Power Failure Detector

Absolute Maximum Ratings

Parameter Max Unit

Input Voltage -0.3~10 V

Output Voltage -0.3~12 V

Maximum Output current 70 mA

Maximum power dissipation

SOT-23-3L 250

mW SOT-23-5 250

SOT-89-3 500

TO-92 600

Ambient temperature -40~+85 ℃

Storage temperature -40~+150 ℃

ACE301


VER 1.7 2

Packaging Type

SOT-23-3L SOT-89-3 SOT-23-5 TO-92

3 5 4

1 2 1 2 3 1 2 3

1 2 3

Ordering information

ACE301 X XX XX + H

SOT-23-3L SOT-89-3 SOT-23-5 TO-92 Description Function

1 1 1 1 VOUT Voltage detection output Pin

3 2 2 2 VDD Voltage input Pin

2 3 3 3 VSS GND Pin

4 NC No connection

5 NC No connection

Detector Voltage 0.9V ~ 6.0V

Pb - free

Halogen - free

Output type N: Nch / C: CMOS

BM: SOT-23-3L

BN: SOT-23-5

AM: SOT-89-3

EP: TO-92

ACE301


VER 1.7 3

Block diagram

N channel open-drain CMOS output

Recommended Work Conditions

Item Min Recommended Max Unit

Input Voltage 0.7 10 V

Ambient temperature -40 25 85 ℃

Electrical Characteristics:

ACE301C/N09XX + (0.9V) (Topt=25℃, Unless otherwise specified.)

Symbol Parameter Conditions Reference data

Unit Min. Typ. Max.

-VDET Detector Threshold 0.882 0.9 0.918 V

VHYS Detector Threshold Hysteresis 0.018 0.036 0.054 V

ISS Current Consumption VDD=2.9V 1 2.5 uA

VDDH Maximum Operating Voltage 10 V

VDDL Minimum Operating Voltage 0.5 V

IOUT Output Current

Nch VDS=0.05V, VDD=0.7V VDS=0.50V, VDD=0.8V

0.01 0.05

0.05 0.50

mA

Pch VDS=-2.1V, VDD=4.50V

1.0 2.0 mA

TPLH Output Delay Time 20 uS

ACE301


VER 1.7 4



Unit Min. Typ. Max.






IOUT Output Current

Nch VDS=0.05V, VDD=0.7V

0.01 0.05 mA


1.0 2.0 mA




Unit Min. Typ. Max.






IOUT Output Current


0.01 0.05 mA


1.0 2.0 mA




Unit Min. Typ. Max.






IOUT Output Current


0.01 0.05 mA


1.0 2.0 mA


ACE301


VER 1.7 5



Unit Min. Typ. Max.






IOUT Output Current


0.01 0.05 mA


1.5 3.0 mA


Electrical Characteristics by Detector Threshold

Part Number

Detector Threshold Detector Threshold

Hysteresis Supply Current1 Supply Current2

-Vdet[V] Vhys[V] Iss1[uA] Iss2[uA]

Min. Typ. Max. Min. Typ. Max. Condition Typ. Max. Condition Typ. Max.

ACE301X09XX+ 0.882 0.900 0.918 0.018 0.036 0.054

Vdd=

(-Vdet)+0.1V 0.5 1.0

Vdd=

(-Vdet)+2V

1.0 2.5

ACE301X10XX+ 0.980 1.000 1.020 0.020 0.040 0.060

ACE301X11XX+ 1.078 1.100 1.122 0.022 0.044 0.066

ACE301X12XX+ 1.176 1.200 1.224 0.024 0.048 0.072

ACE301X13XX+ 1.274 1.300 1.326 0.026 0.052 0.078

ACE301X14XX+ 1.372 1.400 1.428 0.028 0.056 0.084

ACE301X15XX+ 1.470 1.500 1.530 0.030 0.060 0.090

ACE301X16XX+ 1.568 1.600 1.632 0.032 0.064 0.096

ACE301X17XX+ 1.666 1.700 1.734 0.034 0.068 0.102

ACE301X18XX+ 1.764 1.800 1.836 0.036 0.072 0.108

ACE301X19XX+ 1.862 1.900 1.938 0.038 0.076 0.114

ACE301X20XX+ 1.960 2.000 2.040 0.040 0.080 0.120

0.5 2.5

ACE301X21XX+ 2.058 2.100 2.142 0.042 0.084 0.126

ACE301X22XX+ 2.156 2.200 2.244 0.044 0.088 0.132

ACE301X23XX+ 2.254 2.300 2.346 0.046 0.092 0.138

ACE301X24XX+ 2.352 2.400 2.448 0.048 0.096 0.144

ACE301X25XX+ 2.450 2.500 2.550 0.050 0.100 0.150

ACE301X26XX+ 2.548 2.600 2.652 0.052 0.104 0.156

ACE301


VER 1.7 6

ACE301X27XX+ 2.646 2.700 2.754 0.054 0.108 0.162

ACE301X28XX+ 2.744 2.800 2.856 0.056 0.112 0.168

ACE301X29XX+ 2.842 2.900 2.958 0.058 0.116 0.174

ACE301X30XX+ 2.940 3.000 3.060 0.060 0.120 0.180

ACE301X31XX+ 3.038 3.100 3.162 0.062 0.124 0.186

ACE301X32XX+ 3.136 3.200 3.264 0.064 0.128 0.192

ACE301X33XX+ 3.234 3.300 3.366 0.066 0.132 0.198

ACE301X34XX+ 3.332 3.400 3.468 0.068 0.136 0.204

ACE301X35XX+ 3.430 3.500 3.570 0.070 0.140 0.210

ACE301X36XX+ 3.528 3.600 3.672 0.072 0.144 0.216

ACE301X37XX+ 3.626 3.700 3.774 0.074 0.148 0.222

ACE301X38XX+ 3.724 3.800 3.876 0.076 0.152 0.228

ACE301X39XX+ 3.822 3.900 3.978 0.078 0.156 0.234

ACE301X40XX+ 3.920 4.000 4.080 0.080 0.160 0.240

ACE301X41XX+ 4.018 4.100 4.182 0.082 0.164 0.246

ACE301X42XX+ 4.116 4.200 4.284 0.084 0.168 0.252

ACE301X43XX+ 4.214 4.300 4.386 0.086 0.172 0.258

ACE301X44XX+ 4.312 4.400 4.488 0.088 0.176 0.264

ACE301X45XX+ 4.410 4.500 4.590 0.090 0.180 0.270

ACE301X46XX+ 4.508 4.600 4.692 0.092 0.184 0.276

ACE301X47XX+ 4.606 4.700 4.794 0.094 0.188 0.282

ACE301X48XX+ 4.704 4.800 4.896 0.096 0.192 0.288

ACE301X49XX+ 4.802 4.900 4.998 0.098 0.196 0.294

ACE301X50XX+ 4.900 5.000 5.100 0.100 0.200 0.300

ACE301X51XX+ 4.998 5.100 5.202 0.102 0.204 0.306

ACE301X52XX+ 5.096 5.200 5.304 0.104 0.208 0.312

ACE301X53XX+ 5.194 5.300 5.406 0.106 0.212 0.318

ACE301X54XX+ 5.292 5.400 5.508 0.108 0.216 0.324

ACE301X55XX+ 5.390 5.500 5.610 0.110 0.220 0.330

ACE301X56XX+ 5.488 5.600 5.712 0.112 0.224 0.336

ACE301X57XX+ 5.586 5.700 5.814 0.114 0.228 0.342

ACE301X58XX+ 5.684 5.800 5.916 0.116 0.232 0.348

ACE301X59XX+ 5.782 5.900 6.018 0.118 0.236 0.354

ACE301X60XX+ 5.880 6.000 6.120 0.120 0.240 0.360

ACE301


VER 1.7 7

Output Current1 Output Current2

Output

Delay

Time

Minimum

Operation

Voltage

Detector

Threshold

Temperature

Coefficient

Iout1[mA] Iout2[mA] TPLH[us] VDDL[V] Δ-VDET/ΔTppm/℃

Condition Min. Typ. Condition Min. Typ. Max. Typ. Max. Condition Typ.

NCH,

VDS=0.05V,

VDD=0.7V

0.01 0.05 NCH,

VDS=0.5V

Vdd=0.85V 0.1 0.5

20 0.5 0.7 -40℃~85℃ 100 Vdd=1.0V 0.2 1.0

VDD=1.5V 1.0 2.0

Function description

High precision low temperature co-efficiency reference voltage is applied to the negative input of a

comparator. Input voltage, divided by resistor array of Ra Rb and Rc, is applied to the positive input of the

comparator. Output of the comparator controls a pair of NMOS and PMOS switches, generating the

hysteresis. Output of the comparator passes a series of buffer to drive the output CMOS pair.

+VDET, -VDET, VHYS can be calculated as follows:

-VDET =VREF*(1+Ra/(Rb+Rc))

+VDET =VREF*(1+(Ra+Rb)/Rb)=VREF *(1+(Ra+Rc)/Rb)

VHYS = +VDET-(-VDET)=VREF*(Ra+Rb+Rc)(1/Rb-1/(Rb+Rc))

ACE301


VER 1.7 8

No. Operation status Output status

Ⅰ VDD>-VDET Output voltage is equal to the supply voltage

Ⅱ VDD drops below – VDET Output voltage equals to GNP level

Ⅲ VDD drops further below VDDL Output voltage is undefined

Ⅳ VDD rises above VDDL Output voltage equals to GNP level

Ⅴ VDD rises above + VDET Output voltage equals to supply voltage,

VHYS=(+VDET)-(-VDET)

Test circuits

(1) Supply current test circuit (2) Detector threshold test circuit

ACE301 ACE301

ACE301


VER 1.7 9

(3) NCH Drive Output Current Test Circuit (4) PCH Drive Output Current Test Circuit

ACE301 ACE301

Typical Performance Characteristics

(1) Output voltage VS. Input Voltage

Detector threshold=0.9V Detector threshold=0.9V Detector threshold=0.9V

(-40℃) (25℃) (70℃)

Input Voltage (V) Input Voltage (V) Input Voltage (V)


(-40℃) (25℃) (70℃)


ACE301


VER 1.7 10


(-40℃) (25℃) (70℃)



(-40℃) (25℃) (70℃)


(2) Supply current VS. Input Voltage

Detector threshold=0.9V Detector threshold=2.7V

Input Voltage (V) Input Voltage (V)

ACE301


VER 1.7 11


Input Voltage (V) Input Voltage (V)

(3) Detector Threshold Hysteresis VS. Temperature


Temperature (℃) Temperature (℃)


Temperature (℃) Temperature (℃)

ACE301


VER 1.7 12

(4) Nch Driver Output Current VS. VDS

ACE301C09XX+ ACE301C27XX+

VDS(V) VDS(V)

ACE301C30XX+ ACE301C44XX+

VDS(V) VDS(V)

(5) Nch Driver Output Current VS. Input Voltage


Input Voltage Vin(V) Input Voltage Vin(V)

ACE301


VER 1.7 13

(6) PCH Driver Output Current VS. Input Current


Input Voltage Vin(V) Input Voltage Vin(V)

Detector threshold=4.4V

Input Voltage Vin(V)

Typical applications

ACE301

Note:

1. R0 is unnecessary for CMOS output products.

2. The value of R0 need to be selected in different application, Typical value is 470kΩ.

ACE301


VER 1.7 14

Packing Information

SOT-23-3L

SOT-89-3

ACE301


VER 1.7 15

Packing Information

SOT-23-5

ACE301


VER 1.7 16

Packing Information

TO-92

ACE301


VER 1.7 17

Notes

ACE does not assume any responsibility for use as critical components in life support devices or systems

without the express written approval of the president and general counsel of ACE Electronics Co., LTD.

As sued herein:

1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant

into the body, or (b) support or sustain life, and shoes failure to perform when properly used in

accordance with instructions for use provided in the labeling, can be reasonably expected to result in

a significant injury to the user.

2. A critical component is any component of a life support device or system whose failure to perform can

be reasonably expected to cause the failure of the life support device or system, or to affect its safety

or effectiveness.

ACE Technology Co., LTD.

http://www.ace-ele.com/

Description - ace-ele.com (VER1.7).pdf · ACE301 High-precision Low Voltage Detector VER 1.7 1 Description ACE301 is a series of high precision voltage detector with ultra low current

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